One worker was killed and six others were injured in a Russian attack on a Ukrainian mine, according to the energy company DTEK, which said the attack damaged buildings and caused a power outage. “At that time, 146 miners were underground, and their ascent to the surface is ongoing,” the company said.

U.S. President Donald Trump’s special envoy Keith Kellogg said in Kyiv on Monday that officials are “working very, very hard” on efforts to end the three-year war between Russia and Ukraine, as a lack of progress fuels doubts about whether a peace settlement could be on the horizon.

Ukrainian President Volodymyr Zelenskiy said on Monday he and U.S. envoy Keith Kellogg had held a good meeting and discussed exerting pressure on Russia to hold "real talks" on ending more than three years of war.